Airtac ACE Compact Cylinder ACE125X150B
The AirTAC Airtac ACE Compact Cylinder ACE125X150B is a genuine double acting ISO 21287 compact air cylinder with a Ø125mm bore and 150mm stroke, 1/4" air ports and a hard-anodized aluminium body. Its short compact envelope saves about 50% of the mounting length of an ISO 15552 profile cylinder.
- BoreØ125 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM16×2.0
- CushionFixed TPU bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACE Compact Cylinder ACE125X150B
This AirTAC ACE125X150B is a double acting ISO 21287 compact cylinder with a 125 mm bore and a 150 mm stroke, delivering 6135.9 N of push force at 0.5 MPa. Its hard-anodized aluminium body is about 50% shorter than an ISO 15552 profile cylinder, so it fits into tight machine frames and guarding where a full-length cylinder would not.
With a 25 mm hard-chrome plated S45C rod and a male thread end, this model suits high-force applications in a compact envelope. The fixed TPU bumper absorbs end-of-stroke impact, and since this unit has no -S code, there is no magnet fitted, so CMSE or DMSE sensors cannot be mounted without ordering the optional -S version. For a 2:1 safety margin on vertical lifting, plan to lift about 375 kg at 0.5 MPa, not the full theoretical rating.
Airtac ACE Compact Cylinder ACE125X150B Technical Specifications
| Model | Airtac ACE Compact Cylinder ACE125X150B |
|---|---|
| Series | ACE compact cylinder |
| Standard | ISO 21287 |
| Bore size | Ø125 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M16×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed TPU bumper (both ends) |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC ACE-series (ISO 21287) datasheet. Body: hard-anodized aluminium alloy; piston rod: S45C carbon steel with hard-chrome plating. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G. A built-in magnet is OPTIONAL — add the -S code to fit CMSE / DMSE position sensors.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5890 N |
| 0.7 MPa | 8590 N | 8247 N |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac ACE Compact Cylinder ACE125X150B
| ACE | ISO 21287 compact cylinder (double-acting). |
|---|---|
| 125 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| S | Optional built-in magnet for CMSE / DMSE sensors (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
ACE-family variants: ACE (double acting), ASE / ATE (single acting push / pull), ACED (double rod), ACEJ (adjustable stroke), TACE / TACED (non-rotating twin-guide yoke). Mounting accessories: FA / FB flange, LB foot, CA / CB clevis, CR, SDB pivot, FTC; plus I and Y knuckles. Thread PT (blank) / G.
Where the Airtac ACE Compact Cylinder ACE125X150B Is Used
Heavy Press Ram
Use this 125 mm bore cylinder as the main ram in a small hydraulic-style press frame, where its 6135.9 N push at 0.5 MPa drives stamping or forming dies with a short stroke.
Clamping in Assembly Line
Mount this cylinder on a welding fixture to clamp large steel panels securely. The 5890.5 N pull force at 0.5 MPa holds parts firmly during robotic welding, and the compact body fits between locating pins.
Material Testing Rig
In a laboratory test stand, this cylinder applies a controlled 6135.9 N force to compress samples or test seals. The fixed TPU bumper ensures smooth deceleration at both ends of the 150 mm stroke.
Is the Airtac ACE Compact Cylinder ACE125X150B the Right Cylinder?
At 125 mm bore, this cylinder provides 6135.9 N push and 5890.5 N pull at 0.5 MPa, making it a strong choice for heavy clamping or pressing. If you need less force, the 100 mm bore version pushes 3927.0 N at 0.5 MPa, while the 125 mm bore with a longer stroke up to 300 mm standard is available for larger travels. This model has a male rod thread (B code) and a 1/4" PT port, so verify your fittings and rod coupling match this configuration. Since the magnet is optional and not fitted here, order the -S code if you need position sensing with CMSE or DMSE switches.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short stroke fits the compact body
- ✓ Port/thread type (PT / G)
- ✓ Add -S if you need the magnet for sensors
- ✓ Rod type (female / male B) & mount (FA/LB/CA)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Compact body: keep the stroke short and avoid side load on the rod.
- check Do not dismantle the threaded front/back covers.
- check Keep speed within the rated range; the TPU bumper absorbs stroke-end energy.
- check Installation by qualified personnel per AirTAC docs.
Airtac ACE Compact Cylinder ACE125X150B FAQ
At 0.5 MPa, the push force is 6135.9 N and the pull force is 5890.5 N. At 0.7 MPa, push is 8590.3 N and pull is 8246.7 N. The theoretical maximum force is 1251.4 kgf at 1.0 MPa. This is a double acting cylinder, so air extends and retracts the rod.
No, this ACE125X150B does not have a magnet because the model code lacks the -S suffix. To use CMSE or DMSE reed or solid-state switches, you must order the -S version, which includes the optional magnet. The cylinder has a fixed TPU bumper at both ends, not an adjustable cushion, and operates at speeds from 30 to 500 mm/s.
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